42974545 has 8 divisors (see below), whose sum is σ = 51623424. Its totient is φ = 34343664.

The previous prime is 42974543. The next prime is 42974593. The reversal of 42974545 is 54547924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42974545 - 2¹ = 42974543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42974498 and 42974507.

It is not an unprimeable number, because it can be changed into a prime (42974543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482 + ... + 9388.

It is an arithmetic number, because the mean of its divisors is an integer number (6452928).

Almost surely, 2^42974545 is an apocalyptic number.

It is an amenable number.

42974545 is a deficient number, since it is larger than the sum of its proper divisors (8648879).

42974545 is a wasteful number, since it uses less digits than its factorization.

42974545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8999.

The product of its digits is 201600, while the sum is 40.

The square root of 42974545 is about 6555.4973114173. The cubic root of 42974545 is about 350.2706613870.

The spelling of 42974545 in words is "forty-two million, nine hundred seventy-four thousand, five hundred forty-five".